IN MY OPINION
EESH! unless your PREPARED to raise and HOME between 10 and 200 babies or EVEN MORE dont be breeding them. This is not very responsible and i know i sound like a cruel heartless person but think of the babies.
IF YOUR GOING TO BREED LOOK AT THE FOLLOWING
A) Have you conditioned BOTH parents for two weeks? The breeding takes A LOT out of the female. Tending the nest and eggs/fry is round the clock care for the father.
B) Have you got ROOM, when breeding you need AT LEAST three tanks to begin with. you take the female out after the breeding, the male remains with the eggs for two or three days then he needs removing. the spawn stay in the breeding tank. Breeding tanks usually are best bare bottomed to prevent loss of fry in amongst the gravel.
C) Can you house the fry. when the males begin "puberty" they will fight to the death if left together. Males MUST have their own tank or container.(ONE male to one container no females with them)
D) Are you prepared to feed and care for all these offspring and do daily or every two day water changes (depending on container size) my 2 gal or a little more needs water changes AT LEAST every two days.
E) although Bettas may like with no heater and no filter its recommended to put both on all tanks.( heater filter sizes are depended on each individual tank size) Can you do this?
F) Finding homes for that many babies is HARD some LPS (local pet stores) will take them most wont. but pet shops wont look at even taking them until they are matured 4 months and up, usually they take them at 6 months old. can you provide the daily (when young they need special food and feeding little and many times) care and maintenance for them?
Im sure the more experienced members can add to this list